rhsa-2023_7379
Vulnerability from csaf_redhat
Published
2023-11-21 10:27
Modified
2024-09-16 13:00
Summary
Red Hat Security Advisory: kernel-rt security update
Notes
Topic
An update for kernel-rt is now available for Red Hat Enterprise Linux 9.2 Extended Update Support.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.
Security Fix(es):
* kernel: net/sched: cls_u32 component reference counter leak if tcf_change_indev() fails (CVE-2023-3609)
* kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags (CVE-2023-3812)
* kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route (CVE-2023-4128, CVE-2023-4206, CVE-2023-4207, CVE-2023-4208)
* kernel: use after free in nvmet_tcp_free_crypto in NVMe (CVE-2023-5178)
* kernel: netfilter: potential slab-out-of-bound access due to integer underflow (CVE-2023-42753)
* kernel: AMD: Cross-Thread Return Address Predictions (CVE-2022-27672)
* hw: Intel: Gather Data Sampling (GDS) side channel vulnerability (CVE-2022-40982)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
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"ids": [
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{
"category": "description",
"text": "A flaw was found in HW. When SMT is enabled, certain AMD processors may speculatively execute instructions using a target from the sibling thread after an SMT mode switch, potentially resulting in information disclosure.",
"title": "Vulnerability description"
},
{
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"text": "kernel: AMD: Cross-Thread Return Address Predictions",
"title": "Vulnerability summary"
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{
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"text": "The Red Hat Enterprise Linux 8 and 9 are not affected if spectre_v2 mitigation enabled (and it is enabled by default).",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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{
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"url": "https://access.redhat.com/security/cve/CVE-2022-27672"
},
{
"category": "external",
"summary": "RHBZ#2174765",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2174765"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-27672",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-27672"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-27672",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-27672"
},
{
"category": "external",
"summary": "https://kernel.org/doc/html//next/admin-guide/hw-vuln/cross-thread-rsb.html",
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"summary": "https://www.openwall.com/lists/oss-security/2023/02/14/4",
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{
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},
{
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"cwe": {
"id": "CWE-200",
"name": "Exposure of Sensitive Information to an Unauthorized Actor"
},
"discovery_date": "2023-07-19T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2223949"
}
],
"notes": [
{
"category": "description",
"text": "A Gather Data Sampling (GDS) transient execution side-channel vulnerability was found affecting certain Intel processors. This issue may allow a local attacker using gather instruction (load from memory) to infer stale data from previously used vector registers on the same physical core.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "hw: Intel: Gather Data Sampling (GDS) side channel vulnerability",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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{
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"url": "https://access.redhat.com/security/cve/CVE-2022-40982"
},
{
"category": "external",
"summary": "RHBZ#2223949",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2223949"
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{
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},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-40982",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-40982"
},
{
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"summary": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00828.html",
"url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00828.html"
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{
"cve": "CVE-2023-3812",
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{
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},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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"text": "This record is a duplicate of CVE-2023-4206, CVE-2023-4207, and CVE-2023-4208. Do not use this CVE record: CVE-2023-4128.",
"title": "Vulnerability description"
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"text": "kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route",
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"category": "other",
"text": "All CVE users should reference CVE-2023-4206, CVE-2023-4207, CVE-2023-4208 instead of this record. All references and descriptions in this record have been removed to prevent accidental usage.",
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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"title": "kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route"
},
{
"cve": "CVE-2023-4206",
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{
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"text": "There are 3 CVEs for the use-after-free flaw found in net/sched/cls_fw.c in classifiers (cls_fw, cls_u32, and cls_route) in the Linux Kernel: CVE-2023-4206, CVE-2023-4207, CVE-2023-4208. \r\nA local user could use any of these flaws to crash the system or potentially escalate their privileges on the system.\r\n\r\nSimilar CVE-2023-4128 was rejected as a duplicate.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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{
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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{
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{
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"text": "There are 3 CVEs for the use-after-free flaw found in net/sched/cls_fw.c in classifiers (cls_fw, cls_u32, and cls_route) in the Linux Kernel: CVE-2023-4206, CVE-2023-4207, CVE-2023-4208. \r\nA local user could use any of these flaws to crash the system or potentially escalate their privileges on the system.\r\n\r\nSimilar CVE-2023-4128 was rejected as a duplicate.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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},
{
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{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2023-42753"
},
{
"category": "external",
"summary": "RHBZ#2239843",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2239843"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-42753",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-42753"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-42753",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-42753"
},
{
"category": "external",
"summary": "https://seclists.org/oss-sec/2023/q3/216",
"url": "https://seclists.org/oss-sec/2023/q3/216"
}
],
"release_date": "2023-09-22T00:00:00+00:00",
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